The Science of Sleep with Matthew Walker
Why do humans sleep?\xa0 What is sleep\u2019s evolutionary basis? And what is really going on while we sleep?\xa0 This week, we broadcast a conversation with cognitive neuroscientist Matthew Walker, talking to Indre Viskontas, originally recorded in 2015.\xa0 Walker is an expert in sleep science, and his research reveals that every tissue in the body and every process within the brain is enhanced as we sleep \u2013 and impaired when we\u2019re not sleeping enough.\xa0 His research also examines the effects of stress, medications, and alcohol on sleep, and the ways we can improve our sleeping habits.